G - Physics – 01 – F
Patent
G - Physics
01
F
73/69, 73/0.5
G01F 23/26 (2006.01) G01F 25/00 (2006.01)
Patent
CA 1191716
Abstract of the Disclosure A system and probe for indicating the level of material in a vessel as a function of material capacitance comprising a resonant circuit including a capacitance probe adapted to be disposed in a vessel so as to be re- sponsive to variations in capacitance as a function of material level. An rf oscillator has an output coupled to the resonant circuit and to a phase detector for detect- ing variations in phase angle as a function of probe capac- itance. Level detection circuitry is responsive to an output of the phase detector and to a reference signal indicative of a predetermined level of material for indicat- ing material level as a function of a difference between capacitance at the probe and the reference signal. In the preferred embodiments of the invention disclosed, an auto- matic calibration circuit adjusts the resonance character istics of the parallel resonant circuit of the reference signal indicative of a predetermined reference material level.
432825
Fathauer George H.
Hood Charles F.
Berwind Corporation
Marks & Clerk
Venture Measurement Company Llc
LandOfFree
Capacitance-type material level indicator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Capacitance-type material level indicator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Capacitance-type material level indicator will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1248177